/*
 * SVG Salamander
 * Copyright (c) 2004, Mark McKay
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or 
 * without modification, are permitted provided that the following
 * conditions are met:
 *
 *   - Redistributions of source code must retain the above 
 *     copyright notice, this list of conditions and the following
 *     disclaimer.
 *   - Redistributions in binary form must reproduce the above
 *     copyright notice, this list of conditions and the following
 *     disclaimer in the documentation and/or other materials 
 *     provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE. 
 * 
 * Mark McKay can be contacted at mark@kitfox.com.  Salamander and other
 * projects can be found at http://www.kitfox.com
 *
 * Created on January 26, 2004, 5:25 PM
 */
package com.kitfox.svg;

import java.awt.Graphics2D;
import java.awt.Shape;
import java.awt.geom.Rectangle2D;
import java.awt.geom.RectangularShape;
import java.awt.geom.RoundRectangle2D;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;

import com.kitfox.svg.xml.StyleAttribute;

/**
 * @author Mark McKay
 * @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
 */
public class Rect extends ShapeElement {
	public static final String TAG_NAME = "rect";

	float x = 0f;
	float y = 0f;
	float width = 0f;
	float height = 0f;
	float rx = 0f;
	float ry = 0f;
	RectangularShape rect;

	/**
	 * Creates a new instance of Rect
	 */
	public Rect() {
	}

	@Override
	public String getTagName() {
		return TAG_NAME;
	}

	private void writeObject(ObjectOutputStream out) throws IOException {
		out.writeFloat(x);
		out.writeFloat(y);
		out.writeFloat(width);
		out.writeFloat(height);
		out.writeFloat(rx);
		out.writeFloat(ry);
	}

	private void readObject(ObjectInputStream in) throws IOException {
		x = in.readFloat();
		y = in.readFloat();
		width = in.readFloat();
		height = in.readFloat();
		rx = in.readFloat();
		ry = in.readFloat();

		if (rx == 0f && ry == 0f) {
			rect = new Rectangle2D.Float(x, y, width, height);
		} else {
			rect = new RoundRectangle2D.Float(x, y, width, height, rx * 2,
					ry * 2);
		}
	}

	/*
	 * public void loaderStartElement(SVGLoaderHelper helper, Attributes attrs,
	 * SVGElement parent) { //Load style string super.loaderStartElement(helper,
	 * attrs, parent);
	 * 
	 * String x = attrs.getValue("x"); String y = attrs.getValue("y"); String
	 * width = attrs.getValue("width"); String height =
	 * attrs.getValue("height"); String rx = attrs.getValue("rx"); String ry =
	 * attrs.getValue("ry");
	 * 
	 * if (rx == null) rx = ry; if (ry == null) ry = rx;
	 * 
	 * this.x = XMLParseUtil.parseFloat(x); this.y = XMLParseUtil.parseFloat(y);
	 * this.width = XMLParseUtil.parseFloat(width); this.height =
	 * XMLParseUtil.parseFloat(height); if (rx != null) { this.rx =
	 * XMLParseUtil.parseFloat(rx); this.ry = XMLParseUtil.parseFloat(ry); }
	 * 
	 * build(); // setBounds(this.x, this.y, this.width, this.height); }
	 */
	@Override
	protected void build() throws SVGException {
		super.build();

		StyleAttribute sty = new StyleAttribute();

		// SVGElement parent = this.getParent();
		// if (parent instanceof RenderableElement)
		// {
		// RenderableElement re = (RenderableElement)parent;
		// Rectangle2D bounds = re.getBoundingBox();
		// bounds = null;
		// }

		if (getPres(sty.setName("x"))) {
			x = sty.getFloatValueWithUnits();
		}

		if (getPres(sty.setName("y"))) {
			y = sty.getFloatValueWithUnits();
		}

		if (getPres(sty.setName("width"))) {
			width = sty.getFloatValueWithUnits();
		}

		if (getPres(sty.setName("height"))) {
			height = sty.getFloatValueWithUnits();
		}

		boolean rxSet = false;
		if (getPres(sty.setName("rx"))) {
			rx = sty.getFloatValueWithUnits();
			rxSet = true;
		}

		boolean rySet = false;
		if (getPres(sty.setName("ry"))) {
			ry = sty.getFloatValueWithUnits();
			rySet = true;
		}

		if (!rxSet) {
			rx = ry;
		}
		if (!rySet) {
			ry = rx;
		}

		if (rx == 0f && ry == 0f) {
			rect = new Rectangle2D.Float(x, y, width, height);
		} else {
			rect = new RoundRectangle2D.Float(x, y, width, height, rx * 2,
					ry * 2);
		}
	}

	@Override
	public void render(Graphics2D g) throws SVGException {
		beginLayer(g);
		renderShape(g, rect);
		finishLayer(g);
	}

	@Override
	public Shape getShape() {
		return shapeToParent(rect);
	}

	@Override
	public Rectangle2D getBoundingBox() throws SVGException {
		return boundsToParent(includeStrokeInBounds(rect.getBounds2D()));
	}

	/**
	 * Updates all attributes in this diagram associated with a time event. Ie,
	 * all attributes with track information.
	 *
	 * @return - true if this node has changed state as a result of the time
	 *         update
	 */
	@Override
	public boolean updateTime(double curTime) throws SVGException {
		// if (trackManager.getNumTracks() == 0) return false;
		boolean changeState = super.updateTime(curTime);

		// Get current values for parameters
		StyleAttribute sty = new StyleAttribute();
		boolean shapeChange = false;

		if (getPres(sty.setName("x"))) {
			float newVal = sty.getFloatValueWithUnits();
			if (newVal != x) {
				x = newVal;
				shapeChange = true;
			}
		}

		if (getPres(sty.setName("y"))) {
			float newVal = sty.getFloatValueWithUnits();
			if (newVal != y) {
				y = newVal;
				shapeChange = true;
			}
		}

		if (getPres(sty.setName("width"))) {
			float newVal = sty.getFloatValueWithUnits();
			if (newVal != width) {
				width = newVal;
				shapeChange = true;
			}
		}

		if (getPres(sty.setName("height"))) {
			float newVal = sty.getFloatValueWithUnits();
			if (newVal != height) {
				height = newVal;
				shapeChange = true;
			}
		}

		if (getPres(sty.setName("rx"))) {
			float newVal = sty.getFloatValueWithUnits();
			if (newVal != rx) {
				rx = newVal;
				shapeChange = true;
			}
		}

		if (getPres(sty.setName("ry"))) {
			float newVal = sty.getFloatValueWithUnits();
			if (newVal != ry) {
				ry = newVal;
				shapeChange = true;
			}
		}

		if (shapeChange) {
			build();
			// if (rx == 0f && ry == 0f)
			// {
			// rect = new Rectangle2D.Float(x, y, width, height);
			// }
			// else
			// {
			// rect = new RoundRectangle2D.Float(x, y, width, height, rx * 2, ry
			// * 2);
			// }
			// return true;
		}

		return changeState || shapeChange;
	}
}
